HazMat Tool — substance information

Oxygen, compressed

HMT May 2026
UN / ID
UN 1072
Hazard class
2.2
Packing group
ERG guide
ERG 122
Special provisions
SP 110, SP A14
Source
49 CFR §172 (2026/05)

Oxygen, compressed


Oxygen is a chemical element; it has the symbol O and its atomic number is 8. It is a member of the chalcogen group in the periodic table. It is highly reactive, a nonmetal, and a potent oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is the most abundant element in Earth's crust, making up almost half of the Earth's crust in the form of various oxides such as water, carbon dioxide, iron oxides, and silicates. Wikipedia

Substance Data

Source: PubChem (HSDB, 08.12.2019)

CAS-Number

7782-44-7

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 122

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

2.2
Non-toxic, non-flammable gases

(4) Identification number Help

UN 1072

(5) Packing Group Help

n/a

(6) Labels Help

Non-toxic, non-flammable gases (2.2) Oxidizers (5.1)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
110
A14

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions306see 49 CFR §173.306
(8B) Non-bulk302see 49 CFR §173.302
(8C) Bulk314, 315see 49 CFR §173.314, 315

(9) Quantity Limits Help

(9A) Passenger aircraft/rail75 kg
(9B) Cargo aircraft only150 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other n/a

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Prohibited Must not be loaded, transported, or stored together in the same vehicle or facility.
Permitted May be loaded, transported, or stored together.
Restricted May be loaded, transported, or stored together only with restrictions.